Pressure means for wringer rolls



March 17, 1942.

J. PERKINS PRESSURE MEANS FOR WRINGER ROLLS 2 Sheets-Sheet 2 Filed Dec. 20, 1940 IINVENTOR. oiafi'awllgm zxw.

Y. .ZrU-framemem-ber isirepresented bylL which may be the outermost bolts 56 limit movements of the Patented Mar. 17, 1942 t Q U NI TE D STAT E S F [C E J PRES SURE. MEAN 8. FOR". W ROLLS .Julian' L.,-P erkins, WestQSpringfield,,.Mass, as-

signer to Perkins Machineand' Gearfiompany, ,"West Springfield, Mass 'a' corporation of -Massachusetts Application December .20; LSMk-SeriaLNo. 370,995

I -6 Claims; (01568-262) .1 This; invention relates ;.to; --improvements in. associated with the headso asto ,beemovable up wringers andgis directed more ;-par.ticular1y to and down.

... :tension,oixpressure-mechanism for the rolls of i. :A pair of fiat spring members.;:40 and 42 ex-- wringers. tend longitudinallynof thegwringer the ends of .1 The princiDal-objects.of;the invention are di- 5 which, diverge more or less as shown in Fig. 1. .-rectedto; the provision-of novelmeansfor ten-r ,:;Opposite. ends." of the upperzspringareseated in rzsioning the: rolls of a-wvringer or putting the. seats :44 and tficofthehead 2 and endi frame 4 wringer rolls under tension. so that they apply. irespectively. The lower springimember has its pressure to material passing through the said i ends: seated in seats 48 of the receiver 30 as shown rolls. clearly: in Fig. 2.

*Various novel-features and: advantages of the :The springs are formed intermediate their ends inventionwill be hereinafter-'more fully referred a withxspaced portions 5!) and 50. at either side of to in connection with the accompanying descrip- .i which-therearecontacting portions 52 and 52' tion of the preferred form of the invention, ref-f ."While'. their" ends are no m y p s A erence being had to the drawingswherein: 115 shown.

Fig. 1 is a partial side and longitudinal sec- A 1t" e e d ug efip d apart tional elevational view of a: wringer embodying, portions ifl and 50' and othenbolts-idextend the novel ieaturesofthe invention; and through t e router ends of the sp all as 'Fig. 2 is atransverse sectional elevational view 1 shown. onthe line 22,of Fig. 1. The bolt 54 may draw the springs together -V.Referring now to1 the-drawings morein detail, more oraless so that in conjunction with the con- I .the..inventionigwilkbe iu-llydescribed, tactingvporti'ons thereof the outer portions of the Aavringer, headris -represented am and: an end pr n s will exert the desired" spr action Wh .connected together :in any: suitable manner as e s Off/he p gs. 1 byaiongitudinal member 6 to form "a wringer Inthe drawings the receivers are shown in frame t t A 1 11 3 has one 1 their-lowermost position the upper sides of openportion of its shaft-l.9-;journal1ed in a bearing: s 3 of e ce s resting on s 8 and .14 andits other end "is operatively connected T 1 o 'thehe d a de B d=- -Sp y toa r011 drive shaft [6, be. tensioned so that the receivers are yieldingly The head. 2 may contain reversing gearing oft; held in this lower position and this may be called any wenknown fgrm for driving t haft is; "zinitialltension. The roll 28 and hub 26 of the A bearing I 8. of the head'is shown in which there i Opera ng ember'ZZ are shown in Fig. as t y are. bushings; for; supporting the shaft 16. The :are positioned when the operating member is in reversing gearingiormsno part of the presentedne al imperative p s t n W h e pper invention and-.therefore need not be described'fi '1 resting on elower roll 8. 'it :being understood that shaft 16 isdriven for .In such a position the rolls are notunder tendriving shaft 12. sioniandthe upperroll may be moved upwardly r. x .An upperzframe;22.;commonly called an oper- "Ibyl gthe operating member. The operating ating membencarries an. upper ro1l24 fOICOaCt-I 40' member with its rollresting on the lower roll 8 in v withthe lower r011.8.1: This'roll 24 has the is swin able nopp 'si e directions from a central ends of its shaitu-journalled in hubs-1'25 at opinoperative. position to an operative position at uposite. ends of .the'toperating member 22. Rolls; eitherside thereof. a 28 are-journalledin the ends of theioperating :1 :When .the-operatingmember is moved from member 22 which with the hubs 26 releasably 2 sicentral inoperativepositionto an inoperative theoperating member .t receivers 3, aposition-at'either side of'the'inoperativeposition, i "receivers 33 one-inthe head 2 and one in the end' Tthe r0115 231MB sed'to roll onto the cam surfra n 4 are simflar so that the one -zx ;faces34 of thel-recewers and the said rolls come wibhvtheihead only needbedescribed pto rest inthe-recesses Citelevatmg the receivers As'shown inFi 2,"the receive 30 amt-IS upper slightlyqagalnst. theaction' of the springs. The

1; springs, rol1s,.and camsurfacesactto releasably end is provided with a vertically disposed slot 32 lock theroperatmg .memberdman operative posileading into recesses 35 having cam surfaces 34, ticn with the upper Toll on the lowar mu A lower recess below part 26 is indicated by 36. In thiS:.'position j h may move A lower vertically .disposed slot is provided ,.55.ward1yagamst ftheaction f the spring when .in the receiver which is of a width substantially. material. suchasclothes is passed between the equal to the-diameterof the bearing 13 so that r0115v so thatthe. Springs vapply pressure to the i e e r may-moVe up and down, all as Shown rolls and material. passedtherebetween.

in Fig. 2. As stated, there is a receiver associated From the. foregoing it will-be. observed that with frame end 4 and formed similarly to that. 00 ,thenpressureapplied tothe rolls may beivaried by moving the central part of the springs towards and away from one another. The mechanism is simple in form and adapted to facilitate.

small variations in pressure within a wide range of pressures.

The invention may be embodied in other specific forms without departing from the essential characteristics thereof. Hence, the present embodiments are therefore to be considered in all respects merely as being illustrative and not as being restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all modifications and variations as fall within the meaning and purview and range of equivalency of the appended claims are therefore intended to be embraced therein.

What it is desired to claim and secureby Letters Patent of the United States is:

1. A wringer comprising in combination, a main frame having a roll journalled therein, an upper frame carrying a roll for coacting with said lower roll which is swingable between a central inoperative position to operative positions at the sides thereof, receivers slidable up and down at opposite ends of the wringer, releasable locking means associated with the opposite ends of the upper frame and receivers to facilitate releasably locking the said upper frame to the receivers in an operative position, pressure applying means including separate longitudinally extending springs having their opposite ends seated in the main frame and receivers respectively and a member holding the central portions of said springs against separation, and means connecting the said upper and lower springs to vary the tension thereof and limiting the spread of said springs at opposite ends thereof,

2. A wringer comprising in combination, a main frame having a roll journalled therein, an upper frame carrying a roll for coacting with said lower roll which is swingable between a central inoperative position to operative positions at the sides thereof, receivers slidable up and down at opposite ends of the wringer, releasable locking means associated with the opposite ends of the upper frame and receivers to facilitate releasably locking the said upper frame to the receivers in an operative position, upper and lower longitudinally extending springs with opposite ends of one spring seated in the main frame and opposite ends of the other spring seated in the receivers, and means holding the central part of the springs against separation and tending to force the ends thereof apart including an adjusting bolt extending through said springs.

3. A wringer comprising in combination, a main frame having a roll journalled therein, an upper frame carrying a roll for coacting with said lower roll which is swingable between a central inoperative position to operative positions at the sides thereof, receivers slidable up and down at opposite ends of the wringer, releasable locking means associated with the opposite ends of the upper frame and receivers to facilitate releasably locking the said upper frame to the receivers in an operative position, pressure applying means including separate longitudinally extending upper and lower springs with spaced apart central and end portions with the latter seated in said main frame and receivers respectively said springs including portions directly contacting each other at either side of the central portions, and means acting on the said central portions of the springs to draw them together and in conjunction with the contacting portions to spread the ends of the springs and vary the action of the end portions thereof.

4. A wringer comprising in combination, a main frame having a roll journalled therein, an upper frame carrying a roll for coacting with said lower roll which is swingable between a central inoperative position to operative positions at the sides thereof, receivers slidable up and down at opposite ends of the wringer, releasable locking means associated with the opposite ends of the upper frame and receivers to facilitate releasably locking the said upper frame to the receivers in an operative position, pressure applying means including separate longitudinally extending upper and lower springs with spaced apart central and end portions with the latter seated in said main frame and receivers respectively and abutting portions at either side of the central portions, and means acting on the said central portions of the springs to draw them together and in conjunction with the abutting portions to spread the ends of the springs and vary the action of the end portions thereof, said latter means acting on the central portions of the springs including a bolt extending through the springs.

5. A wringer comprising in combination, a main frame having a roll journalled therein, an upper frame carrying a roll for coacting with said lower roll which is swingable between a central inoperative position to operative positions at the sides thereof, receivers slidable up and down at opposite ends of the wringer, releasable locking means associated with the opposite ends of the upper frame and receivers to facilitate releasably locking the said upper frame to the receivers in an operative position, pressure applying means including separate longitudinally extending upper and lower springs with spaced apart central and end portions with the latter seated in said main frame and receivers respectively and abutting portions at either side of the central portions, means acting on the said central portions of the springs to draw them together and in conjunction With the abutting portions to spread the ends of the springs and vary the action of the end portions thereof, and means limiting the spread of the end portions of the springs.

6. A wringer comprising in combination, a main frame having a roll journalled therein, an upper frame carrying a roll for coacting with said lower roll which is swingable between a central inoperative position to operative positions at the sides thereof, receivers slidable up and down at opposite ends of the wringer, releasable locking means associated with the opposite ends of the upper frame and receivers to facilitate releasably locking the said upper frame to the receivers in an operative position, pressure applying means including separate longitudinally extending upper and lower springs with spaced apart central and end portions with the latter seated in said main frame and receivers respectively and abutting portions at either side of the central portions, means acting on the said central portions of the springs to draw them together and in conjunction with the abutting portions to spread the ends of the springs and vary the action of the end portions thereof, said latter means acting on the central portions of the springs including a bolt extending through the springs, and means limiting the spread of the end portions of the springs including bolts extending through said springs.

JULIAN L. PERKINS. 

